package collection;

import java.util.ArrayList;
import java.util.List;
import java.util.Random;
import java.util.stream.Collectors;

public class StreamApiDemo1 {
    public static void main(String[] args) {
        Random rand = new Random();
        List<Integer> list = new ArrayList<>();
        for (int i = 0; i < 10; i++) {
            list.add(rand.nextInt(100));
        }
        System.out.println(list);
        List<Integer> list2 = list.stream()
                .map(e -> e * 3).collect(Collectors.toList());
        System.out.println(list2);
        List<Integer> list3 = list.stream().filter(e -> e % 2 == 0).collect(Collectors.toList());
        System.out.println(list3);
        List<Integer> list4 = list.stream().sorted((e1, e2) -> e2 - e1).collect(Collectors.toList());
        System.out.println(list4);
        List<Integer> list5 = list.stream().map(e -> e * 3).filter(e -> e % 2 == 0).sorted((e1, e2) -> e2 - e1).collect(Collectors.toList());
        System.out.println(list5);

    }
}
